Home / 510,021.36-703,801.67-280,541.61

Finding the Fourth Proportional to 510,021.36, 703,801.67 and 280,541.61

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Solution

The fourth proportional to 510,021.36, 703,801.67 and 280,541.61 is: 387,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,021.36 : 703,801.67 = 280,541.61 : x
  2. Step 2: Convert to fraction form
    510,021.36/703,801.67 = 280,541.61/x
  3. Step 3: Cross multiply
    510,021.36x = 703,801.67 × 280,541.61
  4. Step 4: Simplify right side
    510,021.36x = 197,445,653,622.49
  5. Step 5: Solve for x
    x = 197,445,653,622.49/510,021.36
  6. Step 6: Final answer
    x = 387,132.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.